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Finding the Fourth Proportional to 176,300.70, 264,515.85 and 71,130.30

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Solution

The fourth proportional to 176,300.70, 264,515.85 and 71,130.30 is: 106,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,300.70 : 264,515.85 = 71,130.30 : x
  2. Step 2: Convert to fraction form
    176,300.70/264,515.85 = 71,130.30/x
  3. Step 3: Cross multiply
    176,300.70x = 264,515.85 × 71,130.30
  4. Step 4: Simplify right side
    176,300.70x = 18,815,091,765.26
  5. Step 5: Solve for x
    x = 18,815,091,765.26/176,300.70
  6. Step 6: Final answer
    x = 106,721.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.